OENO IVAS 2019 banner
IVES 9 IVES Conference Series 9 Study of the aromatic oxidation markers of Tempranillo long aged wines

Study of the aromatic oxidation markers of Tempranillo long aged wines

Abstract

The aromatic quality of wines after a long aging period in bottle is one of key points for oenologists. The objective of this work is to determine the main representative aromatic compounds found in long aged wines from D.O.Ca. Rioja. This study was made by 32 wines from 1971 to 2010 vintages. Sotolon, acetaldehyde, phenylacetaldehyde, 1,1,6-trimethyl-1,2-dihydronaptalene (TDN), β-damascenone, Y-decalactone and Y-dodecalactone were determined as the most important oxidation markers by GC-MS analysis. Moreover, sensory analysis using triangular tests were performed from wines with and without the addition of the mentioned compounds. Four different concentrations of each odorant were added, as individual compounds and as mixtures. The additions were ranged from values close to the reference odour thresholds up to high level concentrations. The most identified aroma was sotolon, which is commonly associated to curry and coffee liqueur aromatic notes. Other oxidative compounds were easily detected by panellists, such as Y-decalactone (peach compote), Y-dodecalactone (ripe fruit). The mixtures of the odorants were most easily detected than the individual compounds. It should be noted that acetaldehyde and phenylacetaldehyde were rarely perceived and distinguished. 

Acknowledgments:

The authors would like to acknowledge the Ministerio of Economía, Industria and Competitividad and the Centro for the Desarrollo Tecnológico Industrial (CDTI) for their financial support, Proyecto VINySOST Programa Estratégico de Consorcios de Investigación Empresarial Nacional 2014 (CIEN) and Rioja Alta S.A. for the wine samples and its contibution.

DOI:

Publication date: June 23, 2020

Issue: OENO IVAS 2019

Type: Article

Authors

Ana Maria Mislata (1), Miquel Puxeu (1), Enric Nart (1), Elvira Zaldívar (2), Alejandra Ciria (3), 2 Antonio Tomás Palacios-García (2), Julio Sáenz (3), Raul Ferrer-Gallego (1) 

1. Centro Tecnológico del Vino – VITEC -Crtra. Porrera Km 1, 43730 Falset (Tarragona) Spain. 
2. Laboratorios Excell Ibérica S.L., C/ Planillo 12, Pabellón B, Pol. La Portalada II, 26006 Logroño, (La Rioja), Spain. 
3. Rioja Alta S.A., Av. Vizcaya, 8, 26200 Haro(La Rioja), Spain. 

Contact the author

Keywords

Sensory analysis, Odour threshold, Tempranillo, GC-MS 

Tags

IVES Conference Series | OENO IVAS 2019

Citation

Related articles…

How do we describe wine imagery? Expertise shapes language usage and multimodal imagery for wine

The acquisition of wine expertise is a multi-faceted and multisensory process with implications for sensory perception, attention, memory, and language production. With the prevalence of the predictive model of brain functioning, one area of burgeoning research interest involves wine mental imagery, since the brain relies on imagined experiences to build predictions for the future. Recent evidence has shown that, for instance, those with higher imagery vividness are more susceptible to wine advertising. However, little is known about the association between mental imagery and other associated cognitive processes, such as the ability to produce words that describe such imagery. 

Application of remote sensing by unmanned aerial vehicles to map variability in Ontario Riesling and Cabernet Franc vineyards

The objective of this investigation was to verify usefulness of proximal sensing technology and unmanned aerial vehicles (UAVs) for mapping variables e.g., vine size (potential vigor), soil and vine water status, yield, fruit composition, and virus incidence in vineyards.

Enhancing grapevine transformation and regeneration: A novel approach using developmental regulators and BeYDV-mediated expression

Grapevine (Vitis vinifera L.) is a challenging plant species to transform and regenerate due to its complex genome and biological characteristics. This limits the development of cisgenic and gene-edited varieties. One hurdle is selecting the best starting tissue for the transformation process, much like isolating suitable tissue for protoplasts. One promising method involves delivering crispr/cas components to protoplasts isolated from embryogenic calli, which are then induced to regenerate.

Diversity of arbuscular mycorrhizal fungi on grapevine roots across an edaphoclimatic gradient

Challenges associated with climate change, such as soil erosion and drought, have impacted viticulture across wine regions globally in recent decades. As winegrowers struggle to maintain yield and quality standards under these conditions, methods to adapt to and mitigate the impacts of climate change have become more prevalent. One potential mitigation strategy is to enhance symbiotic interaction of grapevine roots with arbuscular mycorrhizal fungi (AMF).

Microbial ecosystems in wineries – molecular interactions between species and modelling of population dynamics

Microbial ecosystems are primary drivers of viticultural, oenological and other cellar-related processes
such as wastewater treatment. Metagenomic datasets have broadly mapped the vast microbial species
diversity of many of the relevant ecological niches within the broader wine environment, from vineyard
soils to plants and grapes to fermentation. The data highlight that species identities and diversity
significantly impact agronomic performance of vineyards as well as wine quality, but the complexity
of these systems and of microbial growth dynamics has defeated attempts to offer actionable
tools to guide or predict specific outcomes of ecosystem-based interventions.